CALGARY - A whistleblower's concerns over TransCanada Corp's pipeline safety practices have been resolved, according to results of a National Energy Board investigation.

The federal regulator said Friday that six of the 16 allegations against the company were partially substantiated, but that TransCanada had taken the appropriate steps to fix the problems. The remaining 10 allegations could not be verified.

The environment and public safety were not at risk and no enforcement action was required, the NEB added. It said the matter is now closed.

The allegations were brought forward in 2014 and early 2015.

The partially substantiated concerns involved, among other things, a pipe that was exposed for a year, the competence of welders working on an Alberta pipeline and a worker failing to wear the proper safety gear on site.

TransCanada spokesman Davis Sheremata said of the six partially substantiated allegations, four involved an infraction of TransCanada's procedures.

"We want to stress that at any time an issue is brought to our attention — whether by an employee, a contractor, inspectors who ensure quality control for our pipeline, or a member of the public — we act appropriately, proactively and of our own accord, as we did in these instances, to ensure we are correcting confirmed issues and continually improving the safety performance of our pipelines and our operations," said Sheremata.

OPINION This week's column is another excerpt from my book about growing up in Florida during the 1950s and 1960s. Despite the distance in miles and time, I believe we all share common bonds, and perhaps these wor